Processes for the preparation of 1-aryl-5-alkyl pyrazole compounds
US8937185B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Apr 22, 2013 |
| Grant date | Jan 20, 2015 |
| Priority date | — |
| Expiry date | Apr 22, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P33/14
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Provided are improved processes for the preparation of 1-aryl pyrazole compounds of formula (I) and (IB):which are substituted at the 5-position of the pyrazole ring with a carbon-linked functional group. The process described are efficient and scalable and do not utilize hazardous sulfenyl halide reagents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.